/*
 * Copyright 2010-2020 Alfresco Software, Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.activiti.engine.impl.bpmn.helper;

import org.activiti.engine.ActivitiException;
import org.activiti.engine.delegate.event.ActivitiEvent;
import org.activiti.engine.delegate.event.ActivitiEventListener;
import org.activiti.engine.impl.context.Context;
import org.activiti.engine.impl.persistence.entity.ExecutionEntity;

/**
 * An {@link ActivitiEventListener} that throws a error event when an event is dispatched to it.
 *

 *
 */
public class ErrorThrowingEventListener extends BaseDelegateEventListener {

  protected String errorCode;

  @Override
  public void onEvent(ActivitiEvent event) {
    if (isValidEvent(event)) {
      onEventInternal(event);
    }
  }

  protected void onEventInternal(ActivitiEvent event){
      ExecutionEntity execution = null;

      if (event.getExecutionId() != null) {
          // Get the execution based on the event's execution ID instead
          execution = Context.getCommandContext().getExecutionEntityManager().findById(event.getExecutionId());
      }

      if (execution == null) {
          throw new ActivitiException("No execution context active and event is not related to an execution. No compensation event can be thrown.");
      }

      try {
          ErrorPropagation.propagateError(errorCode, execution);
      } catch (Exception e) {
          throw new ActivitiException("Error while propagating error-event", e);
      }
  }

  public void setErrorCode(String errorCode) {
    this.errorCode = errorCode;
  }

  @Override
  public boolean isFailOnException() {
    return true;
  }
}
